US20080042416A1 - Airbag with an adaptatively closable vent device - Google Patents

Airbag with an adaptatively closable vent device Download PDF

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Publication number
US20080042416A1
US20080042416A1 US11/709,921 US70992107A US2008042416A1 US 20080042416 A1 US20080042416 A1 US 20080042416A1 US 70992107 A US70992107 A US 70992107A US 2008042416 A1 US2008042416 A1 US 2008042416A1
Authority
US
United States
Prior art keywords
cushion
vent hole
hole
internal pressure
predetermined limit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US11/709,921
Other languages
English (en)
Inventor
Donia Razazi
Joana Tavares Da Silva Vinhas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dalphi Metal Espana SA
Original Assignee
Dalphi Metal Espana SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dalphi Metal Espana SA filed Critical Dalphi Metal Espana SA
Assigned to DALPHI METAL ESPANA, S.A. reassignment DALPHI METAL ESPANA, S.A. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: TAVARES DA SILVA VINHAS, JOANA FRANCISCA, RAZAZI, DONIA
Publication of US20080042416A1 publication Critical patent/US20080042416A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/239—Inflatable members characterised by their venting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/2334—Expansion control features
    • B60R21/2338—Tethers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/2334—Expansion control features
    • B60R21/2338—Tethers
    • B60R2021/23382—Internal tether means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/2334—Expansion control features
    • B60R21/2342—Tear seams

Definitions

  • the present invention relates to an airbag vent device used in vehicles to absorb the blows suffered by drivers and passengers in the event of impacts or collisions.
  • An airbag basically consist of a folded cushion which is quickly inflated by means of a gas produced by a generator when certain sensor devices detect a collision of the vehicle. In this way, the cushion deploys in front of the driver or a passenger, depending on their location, and prevents their bodies hitting any part of the vehicle.
  • the internal pressure caused by the generator upon filling it with gas can be high enough to cause the cushion to be so hard that the occupant rebounds.
  • they have been provided with a vent hole serving to reduce the internal pressure of the cushion and consequently, the possibility of causing damage when they are activated.
  • vent devices which allow increasing the gas outflow according to the specific characteristics of each collision and of the type of passenger affected and in this sense, several solutions of vent devices offering vent holes with an adjustable surface facilitating the increase of the vent area as the internal pressure inside the cushion increases are also known.
  • the objective of the present invention is to obtain an airbag with a closable vent device which for highly severe collisions allows the partial or total closure of the vent hole after a first phase in which it is open expelling gas.
  • This objective is achieved by providing the cushion of the airbag with a device allowing the partial or total closing of said hole when the internal pressure of the gas in the cushion exceeds a predetermined limit (Pt) comprising a part made of flexible material with at least one hole which is fixed at its ends to the inside of the inflatable cushion in the periphery of the vent hole such that the surface of the part is greater than the surface of the cushion delimited by the fixing points of the part and including a mechanism separating the part from the cushion to prevent it from closing the vent hole which is inactivated when the internal pressure in the cushion exceeds a predetermined limit (Pt), the total or partial closing of the vent hole occurring when said part is adhered to the cushion due to the effect of the pressure.
  • Pt predetermined limit
  • An advantage of the present invention is that the operation of the vent device depends on the internal pressure of the cushion which is very interesting given the possibilities for controlling this variable.
  • the end product is more robust since it does not depend on other features such as stresses/deformations.
  • Another advantage of the present invention is that the internal pressure of the cushion is more stable as a parameter for controlling the operation of the vent device than other parameters depending on factors such as the manner in which the cushion is deployed or the placing of the occupant with respect to the cushion.
  • FIGS. 1 and 2 shows schematic elevational views of a cushion of an airbag with a device for closing a vent hole according to a first embodiment of the invention before and after reaching a predetermined pressure (Pt) inside the cushion.
  • Pt predetermined pressure
  • FIGS. 3 and 4 show schematic elevational views of a cushion of an airbag with a device for closing a vent hole according to a second embodiment of the invention before and after reaching a predetermined pressure (Pt) inside the cushion.
  • Pt predetermined pressure
  • the closing device 21 for closing the vent hole 13 of the cushion 11 comprises a fabric part 23 fixed to the cushion 11 in the periphery of the vent hole by means of seams 27 or another suitable fixing means.
  • the part 23 has at least one hole 25 to allow the passage of gas to the vent hole 13 during the deployment of the cushion which takes place when a collision occurs while the pressure inside the cushion does not reach a predetermined limit Pt.
  • the device 21 includes a mechanism keeping the part 23 separated from the cushion 11 , supporting the pressure exerted by the gas emitted by the generator, until the pressure Pt is reached. Then this mechanism is inactivated and the part 23 adheres to the cushion 11 preventing the outflow of gas completely if the hole 25 is not located in front of the vent hole 13 or partially if it is located such that it partially coincides with the vent hole 13 when the part 23 is adhered to the cushion 11 .
  • this mechanism is formed by a clamp 33 made in the part 23 by means of a seam 35 which, when the area of the part 23 decreases, allows the separation thereof from the cushion 11 and which is made such that it is torn off when the internal pressure inside the cushion reaches the predetermined value Pt.
  • the mechanism consists of a strap 43 fixed at one end to the part 23 and at the other end to the cushion 11 including tear-off means 45 provided for being torn off when the internal pressure in the cushion reaches the predetermined value Pt.
  • the tear-off means 45 can be a tear-off seam or a pre-cut.
US11/709,921 2006-03-13 2007-02-22 Airbag with an adaptatively closable vent device Abandoned US20080042416A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200600637 2006-03-13
ES200600637A ES2302603B1 (es) 2006-03-13 2006-03-13 Airbag con un dispositivo de ventilacion obturable adaptativamente.

Publications (1)

Publication Number Publication Date
US20080042416A1 true US20080042416A1 (en) 2008-02-21

Family

ID=38134974

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/709,921 Abandoned US20080042416A1 (en) 2006-03-13 2007-02-22 Airbag with an adaptatively closable vent device

Country Status (4)

Country Link
US (1) US20080042416A1 (fr)
EP (1) EP1834848B1 (fr)
AT (1) ATE517000T1 (fr)
ES (2) ES2302603B1 (fr)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070170710A1 (en) * 2006-01-24 2007-07-26 Benoit Bouquier Venting systems for inflatable objects
US20080042412A1 (en) * 2004-12-02 2008-02-21 Takata-Petri Ag Airbag
US20080073892A1 (en) * 2006-09-27 2008-03-27 Rose Larry D Airbag cushion with a flap vent to optionally vent gas for out-of-position conditions
US20080284147A1 (en) * 2007-05-15 2008-11-20 Toyoda Gosei Co., Ltd. Airbag Apparatus
US20090033081A1 (en) * 2007-07-30 2009-02-05 Trw Vehicle Safety Systems Inc. Air bag with improved tear stitch
US20090039630A1 (en) * 2007-08-09 2009-02-12 Autoliv Asp, Inc. Airbag adaptive venting for out-of-position occupants
US20090091106A1 (en) * 2007-05-09 2009-04-09 Dalphi Metal Espana, S.A. Side airbag with an adaptive venting device
US20100201107A1 (en) * 2007-06-18 2010-08-12 Takata Corporation Airbag, airbag device and airbag exhausting method
US20110133437A1 (en) * 2009-12-09 2011-06-09 Sung Geun Jang Front airbag including sub-string and vent part
US20110140401A1 (en) * 2007-06-21 2011-06-16 Trw Vehicle Safety Systems Inc. Tear stitching for inflatable vehicle occupant protection devices
US20130033026A1 (en) * 2010-02-13 2013-02-07 Ralf Bogenrieder Airbag and Method for Producing Such an Airbag
CN102971187A (zh) * 2010-07-12 2013-03-13 奥托立夫开发公司 侧面安全气囊
US8651521B2 (en) 2009-04-21 2014-02-18 Autoliv Development Ab Airbag module having an airbag with an adaptive ventilation opening
US8684404B2 (en) 2010-10-27 2014-04-01 Trw Vehicle Safety Systems Inc. Air bag with variable venting
US8696022B2 (en) 2010-10-27 2014-04-15 Trw Vehicle Safety Systems Inc. Air bag with variable venting
US20150274115A1 (en) * 2014-03-28 2015-10-01 Trw Vehicle Safety Systems Inc. Air bag with tear stitched tether
US9889937B2 (en) 2012-03-19 2018-02-13 Amsafe, Inc. Structure mounted airbag assemblies and associated systems and methods
US9925950B2 (en) 2015-04-11 2018-03-27 Amsafe, Inc. Active airbag vent system
US9944245B2 (en) 2015-03-28 2018-04-17 Amsafe, Inc. Extending pass-through airbag occupant restraint systems, and associated systems and methods
DE202018105170U1 (de) * 2018-09-10 2020-01-07 Dalphi Metal Espana, S.A. Gassack für ein Fahrzeuginsassen-Rückhaltesystem, Gassackmodul für ein Fahrzeuginsassen-Rückhaltesystem sowie Fahrzeuginsassen-Rückhaltesystem
US10604259B2 (en) 2016-01-20 2020-03-31 Amsafe, Inc. Occupant restraint systems having extending restraints, and associated systems and methods

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1990242B1 (fr) * 2007-05-10 2010-08-04 Dalphi Metal España, S.A. Airbag avec un dispositif de régulation de ventilation
DE602007012889D1 (de) * 2007-10-09 2011-04-14 Dalphi Metal Espana Sa Frontairbag mit adaptiver Entlüftungsvorrichtung
KR100977598B1 (ko) 2007-12-13 2010-08-23 에스앤티대우(주) 팽창충격 완화 에어백장치
PL212619B1 (pl) * 2008-05-02 2012-10-31 Adaptronica Spolka Z Ograniczona Odpowiedzialnoscia Zawór sterowany zwlaszcza do poduszki gazowej
DE102019201443B4 (de) 2019-02-05 2023-01-05 Audi Ag Insassenschutzsystem für ein Kraftfahrzeug

Citations (13)

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Publication number Priority date Publication date Assignee Title
US6095557A (en) * 1997-08-08 2000-08-01 Toyoda Gosei Co., Ltd. Air bag apparatus
US6648371B2 (en) * 2001-07-12 2003-11-18 Delphi Technologies, Inc. Variable venting air bag assembly
US20040012180A1 (en) * 2002-07-19 2004-01-22 Hawthorn Laura Adelle Air bag restraint including selectively operable venting elements
US6773030B2 (en) * 2002-07-24 2004-08-10 Trw Vehicle Safety Systems Inc. Air bag with vent
US20060151975A1 (en) * 2003-07-02 2006-07-13 Naoki Yamaji Air-bag device
US7083192B2 (en) * 2002-09-16 2006-08-01 Trw Vehicle Safety Systems Inc. Air bag module vent with releasable latch
US20080023950A1 (en) * 2006-07-27 2008-01-31 Trw Vehicle Safety Systems Inc. Air bag vent with tether
US7328915B2 (en) * 2004-10-06 2008-02-12 Autoliv Asp, Inc. Airbag cushion with tether deactivated venting for reduced out-of-position effects
US20080079250A1 (en) * 2006-09-28 2008-04-03 Boyle Walter J Air Bag Vent
US20080116673A1 (en) * 2006-11-21 2008-05-22 Yong Sun Kim Vent hole module of air bag
US7377546B2 (en) * 2002-09-16 2008-05-27 Trw Vehicle Safety Systems, Inc. Air bag module with vent controlled by tether
US7475906B2 (en) * 2007-05-15 2009-01-13 Toyoda Gosei Co., Ltd. Airbag apparatus
US20090039630A1 (en) * 2007-08-09 2009-02-12 Autoliv Asp, Inc. Airbag adaptive venting for out-of-position occupants

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Publication number Priority date Publication date Assignee Title
US5405166A (en) * 1993-07-30 1995-04-11 Alliedsignal Inc. Air bag with inflation limiter
DE29609703U1 (de) * 1996-05-31 1996-09-26 Trw Repa Gmbh Gassack
DE19640322B4 (de) * 1996-09-19 2005-06-30 Takata-Petri Ag Airbagmodul
DE19733599C2 (de) * 1997-07-29 1999-12-02 Petri Ag Verfahren und Vorrichtung zum Schutz eines außerhalb der Normalposition befindlichen Fahrzeuginsassen im Crashfall
DE29720461U1 (de) 1997-11-19 1998-02-26 Trw Automotive Safety Sys Gmbh Gassack mit regelbarem Auslaßquerschnitt
ES2182629B1 (es) 2000-03-13 2004-08-16 Dalphi Metal España, S.A. Dispositivo de obstruccion de la membrana de baja presion aplicable para airbags.
DE10236859A1 (de) 2002-08-07 2004-02-19 Takata Corp. Gassack für ein Airbagmodul
DE102004014681B3 (de) * 2004-03-25 2005-07-14 Trw Automotive Gmbh Gassack

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6095557A (en) * 1997-08-08 2000-08-01 Toyoda Gosei Co., Ltd. Air bag apparatus
US6648371B2 (en) * 2001-07-12 2003-11-18 Delphi Technologies, Inc. Variable venting air bag assembly
US20040012180A1 (en) * 2002-07-19 2004-01-22 Hawthorn Laura Adelle Air bag restraint including selectively operable venting elements
US6832778B2 (en) * 2002-07-19 2004-12-21 Delphi Technologies, Inc. Air bag restraint including selectively operable venting elements
US6773030B2 (en) * 2002-07-24 2004-08-10 Trw Vehicle Safety Systems Inc. Air bag with vent
US7083192B2 (en) * 2002-09-16 2006-08-01 Trw Vehicle Safety Systems Inc. Air bag module vent with releasable latch
US7377546B2 (en) * 2002-09-16 2008-05-27 Trw Vehicle Safety Systems, Inc. Air bag module with vent controlled by tether
US20060151975A1 (en) * 2003-07-02 2006-07-13 Naoki Yamaji Air-bag device
US7441802B2 (en) * 2003-07-02 2008-10-28 Ashimori Industry Co., Ltd. Air-bag device
US7328915B2 (en) * 2004-10-06 2008-02-12 Autoliv Asp, Inc. Airbag cushion with tether deactivated venting for reduced out-of-position effects
US20080023950A1 (en) * 2006-07-27 2008-01-31 Trw Vehicle Safety Systems Inc. Air bag vent with tether
US20080079250A1 (en) * 2006-09-28 2008-04-03 Boyle Walter J Air Bag Vent
US20080116673A1 (en) * 2006-11-21 2008-05-22 Yong Sun Kim Vent hole module of air bag
US7475906B2 (en) * 2007-05-15 2009-01-13 Toyoda Gosei Co., Ltd. Airbag apparatus
US20090039630A1 (en) * 2007-08-09 2009-02-12 Autoliv Asp, Inc. Airbag adaptive venting for out-of-position occupants

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080042412A1 (en) * 2004-12-02 2008-02-21 Takata-Petri Ag Airbag
US7543850B2 (en) * 2004-12-02 2009-06-09 Takata-Petri Ag Airbag
US20070170710A1 (en) * 2006-01-24 2007-07-26 Benoit Bouquier Venting systems for inflatable objects
US20080073892A1 (en) * 2006-09-27 2008-03-27 Rose Larry D Airbag cushion with a flap vent to optionally vent gas for out-of-position conditions
US7722080B2 (en) * 2006-09-27 2010-05-25 Autoliv Asp, Inc. Airbag cushion with a flap vent to optionally vent gas for out-of-position conditions
US20090091106A1 (en) * 2007-05-09 2009-04-09 Dalphi Metal Espana, S.A. Side airbag with an adaptive venting device
US7810839B2 (en) * 2007-05-09 2010-10-12 Dalphi Metal Espana S.A. Side airbag with an adaptive venting device
US20080284147A1 (en) * 2007-05-15 2008-11-20 Toyoda Gosei Co., Ltd. Airbag Apparatus
US7475906B2 (en) * 2007-05-15 2009-01-13 Toyoda Gosei Co., Ltd. Airbag apparatus
US8322748B2 (en) * 2007-06-18 2012-12-04 Takata Corporation Airbag, airbag device and airbag exhausting method
US20100201107A1 (en) * 2007-06-18 2010-08-12 Takata Corporation Airbag, airbag device and airbag exhausting method
US8544883B2 (en) 2007-06-21 2013-10-01 Trw Vehicle Safety Systems Inc. Tear stitching for inflatable vehicle occupant protection devices
US20110140401A1 (en) * 2007-06-21 2011-06-16 Trw Vehicle Safety Systems Inc. Tear stitching for inflatable vehicle occupant protection devices
US8262130B2 (en) * 2007-07-30 2012-09-11 Trw Vehicle Safety Systems Inc. Air bag with improved tear stitch
US20120267883A1 (en) * 2007-07-30 2012-10-25 Trw Vehicle Safety Systems Inc. Air bag with improved tear stitch
US20090033081A1 (en) * 2007-07-30 2009-02-05 Trw Vehicle Safety Systems Inc. Air bag with improved tear stitch
US8764058B2 (en) * 2007-07-30 2014-07-01 Trw Vehicle Safety Systems Inc. Air bag with improved tear stitch
US7770926B2 (en) * 2007-08-09 2010-08-10 Autoliv Asp, Inc. Airbag adaptive venting for out-of-position occupants
US20090039630A1 (en) * 2007-08-09 2009-02-12 Autoliv Asp, Inc. Airbag adaptive venting for out-of-position occupants
US8651521B2 (en) 2009-04-21 2014-02-18 Autoliv Development Ab Airbag module having an airbag with an adaptive ventilation opening
US20110133437A1 (en) * 2009-12-09 2011-06-09 Sung Geun Jang Front airbag including sub-string and vent part
US8434786B2 (en) * 2009-12-09 2013-05-07 Autoliv Development Ab Front airbag including sub-string and vent part
US20130033026A1 (en) * 2010-02-13 2013-02-07 Ralf Bogenrieder Airbag and Method for Producing Such an Airbag
US8684406B2 (en) * 2010-02-13 2014-04-01 Daimler Ag Airbag and method for producing such an airbag
US9073510B2 (en) * 2010-07-12 2015-07-07 Autoliv Development Ab Side airbag
US20130147168A1 (en) * 2010-07-12 2013-06-13 Autoliv Development Ab Side airbag
CN102971187A (zh) * 2010-07-12 2013-03-13 奥托立夫开发公司 侧面安全气囊
JP2013530100A (ja) * 2010-07-12 2013-07-25 オートリブ ディベロップメント エービー サイドエアバッグ
US8684404B2 (en) 2010-10-27 2014-04-01 Trw Vehicle Safety Systems Inc. Air bag with variable venting
US8696022B2 (en) 2010-10-27 2014-04-15 Trw Vehicle Safety Systems Inc. Air bag with variable venting
US9889937B2 (en) 2012-03-19 2018-02-13 Amsafe, Inc. Structure mounted airbag assemblies and associated systems and methods
US20150274115A1 (en) * 2014-03-28 2015-10-01 Trw Vehicle Safety Systems Inc. Air bag with tear stitched tether
US9174603B2 (en) * 2014-03-28 2015-11-03 Trw Vehicle Safety Systems Inc. Air bag with tear stitched tether
US9944245B2 (en) 2015-03-28 2018-04-17 Amsafe, Inc. Extending pass-through airbag occupant restraint systems, and associated systems and methods
US9925950B2 (en) 2015-04-11 2018-03-27 Amsafe, Inc. Active airbag vent system
US10604259B2 (en) 2016-01-20 2020-03-31 Amsafe, Inc. Occupant restraint systems having extending restraints, and associated systems and methods
DE202018105170U1 (de) * 2018-09-10 2020-01-07 Dalphi Metal Espana, S.A. Gassack für ein Fahrzeuginsassen-Rückhaltesystem, Gassackmodul für ein Fahrzeuginsassen-Rückhaltesystem sowie Fahrzeuginsassen-Rückhaltesystem

Also Published As

Publication number Publication date
EP1834848B1 (fr) 2011-07-20
ES2370006T3 (es) 2011-12-09
ES2302603A1 (es) 2008-07-16
EP1834848A3 (fr) 2009-02-11
ES2302603B1 (es) 2009-05-20
EP1834848A2 (fr) 2007-09-19
ATE517000T1 (de) 2011-08-15

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Legal Events

Date Code Title Description
AS Assignment

Owner name: DALPHI METAL ESPANA, S.A., SPAIN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:RAZAZI, DONIA;TAVARES DA SILVA VINHAS, JOANA FRANCISCA;REEL/FRAME:019736/0903;SIGNING DATES FROM 20070619 TO 20070622

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION